From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Fri, 20 Nov 2009 05:56:07 +0000 (+0900)
Subject: mtd: vmu-flash: Use hweight_long
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=782e5711d61b2cda45dea447badba3ab07c236f0;p=linux.git

mtd: vmu-flash: Use hweight_long

Use hweight_long instead of Brian Kernighan's/Peter Wegner's method

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c
index 1f73297e77763..1008462c3f7c4 100644
--- a/drivers/mtd/maps/vmu-flash.c
+++ b/drivers/mtd/maps/vmu-flash.c
@@ -612,10 +612,9 @@ static int __devinit vmu_connect(struct maple_device *mdev)
 
 	test_flash_data = be32_to_cpu(mdev->devinfo.function);
 	/* Need to count how many bits are set - to find out which
-	 * function_data element has details of the memory card:
-	 * using Brian Kernighan's/Peter Wegner's method */
-	for (c = 0; test_flash_data; c++)
-		test_flash_data &= test_flash_data - 1;
+	 * function_data element has details of the memory card
+	 */
+	c = hweight_long(test_flash_data);
 
 	basic_flash_data = be32_to_cpu(mdev->devinfo.function_data[c - 1]);